Stainless Steel Top Diaphragm Cover Carb Bolts Kit – Hyosung GV125 GT125R GT125 GT250 GV250
Banishing rusty OEM hardware for good. These Marine Grade A4 Stainless HEX bolts replace the soft, seize-prone factory screws. Designed for a lifetime of maintenance-free carb access and a custom “polished” look.
- ✅ Marine Grade A4: Superior corrosion resistance compared to standard steel.
- 🛠️ Hex Socket Design: No more rounding off; use an Allen key for a secure, easy grip.
- ⚙️ Direct Swap: Fits all carburetted 125cc & 250cc Hyosung V-Twins.
- 📦 What’s Included: 8x Stainless Bolts (Covers both Top Diaphragm Caps).
Description
Let’s be honest: the standard OEM diaphragm cover bolts are a weak point. Made of soft mild steel, they frequently seize, rust, and round off the moment you try to service your slides. This “Maintenance Reality” turns a simple 10-minute job into a nightmare. Our UK-sourced A4 Stainless kit provides the definitive upgrade, offering high-tensile strength and a highly polished finish that resists road salt and engine heat for years to come.
💎 Performance with the “Shiny” Look!
Beyond the visual “bling” of polished stainless, the HEX socket head allows you to apply precise torque without slipping, protecting your delicate carburettor tops.
| A4 Marine Grade The gold standard for rust-proof hardware. |
Hex Drive Use an Allen key for safer, easier maintenance. |
| Precision Fit Matches OEM 13385HG5100 specifications exactly. |
UK Manufactured Quality hardware sourced from the domestic supply chain. |
📜 Confirmed Fitment Guide
📅 YEARS: All carburetted years (GV125 up to 2017).
📦 NOTE: 8 bolts included—enough for a full carb overhaul.
Don’t stop at the tops! Refresh your entire carb setup with our Stainless Float Bowl Bolt Kits for a total “Bling & Bolt” overhaul. View Carb Hardware here.
🔧 Install Tips
- Anti-Seize: Apply a tiny dab of copper grease to the threads to ensure they remain easy to remove for the next 10 years.
- Criss-Cross Pattern: Tighten the bolts gradually in a diagonal pattern. This ensures the diaphragm cover seats flat and prevents vacuum leaks.
- Inspect Seals: While the covers are off, check your rubber diaphragms for pin-holes or tears.
- Tutorials: Need tuning advice? Visit the HyoRiders Tech Guides.
📧 FITMENT QUESTIONS? Email us or join the conversation on the HyoRiders Forums.
Additional information
| Weight | 0.2 kg |
|---|---|
| Dimensions | 10 × 10 × 2 cm |
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GARAGE PICKS // ADD TO BUILD
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Stainless Steel Float Bowl Carb Bolts Kit – Hyosung GV & GT 125/250 Carburettor Models
£5.99 -
Complete Stainless Steel Engine Bolt Kit – Hyosung GT GT125R GV125 GT250R GV250
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Carburettor Carb Float (x1) – Hyosung GT125 GT125R GV250 GT250R GV125
£8.99 -
Carb Rebuild Kit (Carburetor Repair Parts) – Hyosung GT125R GT250 GV125 GV250 GT125
£19.99
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Independent Shop supplying ride enhancements and quality spares with fast dispatch. Need assistance? Access our workshop guides, manuals, tutorials or drop by the forums for troubleshooting help.
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